Surgical implant capture device

Abstract

The present invention discloses a surgical implant capture device, which relates to the field of medical device technology. The surgical implant capture device includes a first mounting tube and a plurality of first capture members, wherein the plurality of first capture members are connected to the first mounting tube, and each first capture member has a first capture sleeve extending from the distal end of the first mounting tube and used to sleeve the implant, and the plurality of first capture sleeves are arranged circumferentially around the first mounting tube, and each first capture sleeve is configured to be able to move between expansion and contraction. Compared to the single collar method in the related art, the surgical implant capture device of the present application can reduce the difficulty of capture, improve capture efficiency, reduce the possibility of multiple capture operations, reduce damage to the inner wall of the lumen, and improve the safety of implant removal.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for capturing surgical implants. Background Art

[0002] During interventional surgery, implants such as stents, filters, or micro-detection devices need to be placed in various lumens of the human body. However, since foreign objects placed in the human body may trigger rejection reactions and may also cause side effects with long-term use, they often need to be removed.

[0003] In order to remove the implant, the related technology usually provides a hook or other connecting piece on the implant, and cooperates with the above-mentioned connecting piece through a capture structure such as a single metal wire and a single loop inserted outside the human body to capture the implant. After the capture structure step, the implant is retracted to remove the implant.

[0004] The capture structure and capture method of this implant require multiple operations to achieve the connection between a single loop and the hook body. Not only is the capture efficiency low and it is easy to damage the lumen, but in some special lumens, due to the human body's functional peristalsis, liquid flow, and the mismatch between the lumen size and the capture structure, the capture structure is easily tilted, further increasing the difficulty of capture and reducing the capture efficiency.

[0005] Therefore, how to efficiently and safely remove implants from the human lumen remains an urgent problem to be solved. Summary of the Invention

[0006] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a surgical implant capture device.

[0007] An embodiment of the present invention provides a surgical object capture device for removing an object inserted into a human lumen. The surgical object capture device includes a first mounting tube and a plurality of first capture members, wherein the plurality of first capture members are connected to the first mounting tube. Each of the first capture members has a first capture sleeve extending from the distal end of the first mounting tube and being used to sleeve the object. The plurality of first capture sleeves are arranged circumferentially around the first mounting tube, and each of the first capture sleeves is configured to be able to adjust its own circumference to move between expansion and contraction.

[0008] In some embodiments of the present invention, the surgical implant capture device includes a plurality of first catheters, which are at least partially installed in the first mounting tube and arranged along the circumference of the first mounting tube. The first capture member has two first free ends, one of which is passed through one of two adjacent first catheters, and the other first free end is passed through the other of two adjacent first catheters. The portion of the first capture member between the two adjacent first catheters surrounds the first capture sleeve.

[0009] In some embodiments of the present invention, the surgical implant capture device further comprises a plurality of second capture members, wherein the plurality of second capture members are connected to the inside of the first mounting tube, the plurality of first capture members are arranged around the periphery of the plurality of second capture members, each second capture member has a second capture sleeve extending from the distal end of the first mounting tube and used to sleeve the implant, the plurality of second capture sleeves are arranged circumferentially around the first mounting tube, and each second capture sleeve is configured to be able to adjust its own circumference to move between expansion and contraction.

[0010] In some embodiments of the present invention, the surgical implant capture device includes a plurality of second catheters, which are at least partially connected to the first mounting tube and arranged along the circumference of the first mounting tube. The plurality of first catheters are arranged around the periphery of the plurality of second catheters, and the distance between the distal end of the second catheter and the distal end of the first mounting tube is greater than the distance between the distal end of the first catheter and the distal end of the first mounting tube. The second capture member has two second free ends, one of the two second free ends is passed through one of the two adjacent second catheters, and the other of the two second free ends is passed through the other of the two adjacent second catheters. The second capture member surrounds the second capture sleeve in the portion between the two adjacent second catheters.

[0011] In some embodiments of the present invention, multiple first ducts and multiple second ducts are alternately arranged along the circumference of the first mounting tube. After the first capture sleeve and the second capture sleeve are unfolded, along the radial direction of the first mounting tube, a portion of each first capture sleeve overlaps with or is opposite to a portion of one of its two circumferentially adjacent second capture sleeves, and another portion of each first capture sleeve overlaps with or is opposite to a portion of the other of its two circumferentially adjacent second capture sleeves.

[0012] In some embodiments of the present invention, the first conduit is provided with a first developing ring, and / or the second conduit is provided with a second developing ring.

[0013] In some embodiments of the present invention, at least one of the two first free ends extends out of the proximal end of the first catheter, and / or at least one of the two second free ends extends out of the proximal end of the second catheter.

[0014] In some embodiments of the present invention, the surgical implant capture device further includes a second mounting tube, which is inserted into the first mounting tube in a manner movable along the length direction of the first mounting tube, the plurality of first catheters being arranged around the second mounting tube, and the plurality of second catheters being installed in the second mounting tube at circumferential intervals along the second mounting tube, and the second mounting tube being configured to be able to drive the second catheter to move along the length direction of the first mounting tube, so that the first capture sleeve and the second capture sleeve form a spacing along the length direction of the first mounting member.

[0015] In some embodiments of the present invention, the elasticity of the first capturing member is greater than the elasticity of the second capturing member.

[0016] In some embodiments of the present invention, the surgical implant capture device further includes an operating assembly, which is connected to the proximal end of the first mounting tube. The operating assembly includes an operating handle, a first operating member and a second operating member connected to the operating handle, the first operating member being connected to the first capture member and used to adjust the circumference of the first capture sleeve, and the second operating member being connected to the second capture member and used to adjust the circumference of the second capture sleeve.

[0017] The surgical implant capture device provided by the present invention has the following beneficial effects:

[0018] By designing the surgical implant capture device to include a first mounting tube and multiple first capture members, multiple first capture sleeves of the multiple first capture members are arranged circumferentially around the first mounting tube, and each first capture sleeve can move between expansion and contraction. When docking the hook body and other connecting members of the implant, the multiple contracted first capture sleeves are transported to a position close to the implant, and then the multiple first capture sleeves are expanded to form a capture structure surrounding the hook body and other connecting members. Then, by moving the multiple first capture sleeves again and contracting the multiple capture sleeves, at least one capture sleeve can be directly connected to the hook body. Compared with the single ring method in the related art, the capture difficulty can be reduced, the capture efficiency can be improved, the possibility of multiple capture operations can be reduced, the damage to the inner wall of the lumen can be reduced, and the safety of implant removal can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 This is a schematic structural diagram of a first surgical implant capture device provided in an embodiment of the present application at one viewing angle;

[0021] Figure 2This is a schematic structural diagram of the first surgical implant capture device provided in an embodiment of the present application from another perspective;

[0022] Figure 3 1 is a structural schematic diagram of the first surgical implant capture device provided in an embodiment of the present application from another perspective;

[0023] Figure 4 This is a schematic structural diagram of the first surgical implant capture device provided in an embodiment of the present application when both the first capture member and the second capture member are retracted;

[0024] Figure 5 This is a schematic structural diagram of a first surgical implant capture device provided in an embodiment of the present application when the first capture member is deployed and the second capture member is retracted;

[0025] Figure 6 This is a schematic structural diagram of a first surgical insertion capture device provided in an embodiment of the present application when both the first capture member and the second capture member are deployed;

[0026] Figure 7 This is a schematic structural diagram of the first surgical implant capture device provided in an embodiment of the present application when performing a capture operation in a lumen;

[0027] Figure 8 This is a schematic structural diagram of a second surgical implant capture device provided in an embodiment of the present application at one viewing angle;

[0028] Figure 9 1 is a schematic structural diagram of a second surgical implant capture device provided in an embodiment of the present application from another perspective;

[0029] Figure 10 1 is a schematic structural diagram of the second surgical implant capture device provided in an embodiment of the present application when performing a capture operation in a lumen;

[0030] Figure 11 This is a schematic structural diagram of the third surgical implant capture device provided in an embodiment of the present application from another perspective;

[0031] Figure 12 1 is a schematic structural diagram of the third surgical implant capture device provided in an embodiment of the present application when performing a capture operation in a lumen;

[0032] Figure 13 1 is a schematic structural diagram of the fourth surgical implant capture device provided in an embodiment of the present application when performing a capture operation in a lumen;

[0033] Figure 14 1 is a schematic structural diagram of the fourth surgical implant capture device provided in an embodiment of the present application when performing a capture operation in a lumen;

[0034] Figure 15 This is a schematic diagram of the connection between two adjacent first conduits and a first capture member provided in an embodiment of the present application.

[0035] The reference numerals are as follows:

[0036] 10. First mounting tube; 20. First capturing member; 21. First capturing sleeve; 22. First free end; 30. First catheter; 40. Second capturing member; 41. Second capturing sleeve; 50. Second catheter; 60. Second mounting tube; 70. Operating assembly; 71. Operating handle; 72. First operating member; 73. Second operating member; 80. First developing ring; 90. Second developing ring; 100. Lumen; 200. Insert; 210. Hook body. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the embodiments of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0039] It should be understood that although the terms first, second, third, etc. may be used to describe the acquisition modules in the embodiments of the present invention, the acquisition modules should not be limited to these terms. These terms are only used to distinguish the acquisition modules from each other.

[0040] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0041] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of the present invention are described from the perspectives shown in the accompanying drawings and should not be construed as limiting the embodiments of the present invention. Furthermore, in the context, it should be understood that when an element is referred to as being formed "on" or "under" another element, it can be formed not only directly "on" or "under" the other element, but also indirectly "on" or "under" the other element through an intermediate element.

[0042] With advances in medical technology, minimally invasive interventional therapies have become widely used. For example, the implantation of implants (such as stents, filters, or micro-detection devices) within various luminal structures has effectively resolved many surgical issues and significantly alleviated patient pain. However, these implants can trigger rejection in the body, and long-term use can lead to side effects such as drug restriction and skin creeping caused by foreign body reactions, which can further narrow dilated blood vessels and increase the risk of new blockages.

[0043] Therefore, in recent years, the removal of implants placed into the lumen after minimally invasive surgery has become a treatment trend. To facilitate the removal of implants, a hook or threaded connector is placed at one end of the implant, which is engaged by a single loop of a single metal wire of a capture device, thereby achieving retraction and removal. However, these single-loop capture devices are quite difficult to capture, often requiring multiple manipulations. This increases the risk of damage to the vessel wall, potentially causing localized bleeding and posing a threat to brain health.

[0044] Furthermore, for implants placed in other lumens (such as the intestine, urethra, or biliary tract), factors such as peristalsis, fluid flow, and lumen size mismatch may cause the implant to tilt, further increasing the difficulty of capture, prolonging the procedure, and increasing the risk of damage to the lumen wall. Therefore, how to safely and effectively remove implants from human lumens remains an important issue that needs to be addressed.

[0045] In view of this, the present embodiment provides a surgical implant capture device, which solves the above technical problems by configuring a plurality of retractable circumferentially distributed capture sleeves.

[0046] The following is combined with Figure 1-15 The surgical implant capturing device of this embodiment is introduced.

[0047] Combined with attachment Figure 1-3 As shown, an embodiment of the present application provides a surgical implant 200 capture device for removing the implant 200 in the human lumen 100. The implant 200 can be a stent, a filter, or a micro-detection device, etc., which are structural components placed in the human lumen 100 through interventional surgery. This embodiment does not list them one by one.

[0048] The surgical implant 200 capture device provided in this embodiment includes a first mounting tube 10 and a plurality of first capture members 20. The first mounting tube 10 is a tubular member with a certain structural length and can be made of a polymer material such as plastic.

[0049] The first mounting tube 10 has a proximal end and a distal end, wherein the "proximal end" refers to the end closer to the operator during the process of capturing the inserted object 200 ( Figure 1 The lower end of Figure 4-6 The “distal end” refers to the end that is away from the operator and close to the implant 200 during the process of capturing the implant 200 ( Figure 1 The upper end of Figure 4-6 left end of the ).

[0050] Multiple first capture members 20 are installed within the first mounting tube 10. These first capture members 20 may or may not be connected to the first mounting tube 10. Whether the first capture members 20 are connected to the first mounting member is determined by the contraction of the first capture sleeve 21 of the first capture member 20. For example, a first capture member 20 may have a socket at one end, with the other end inserted into the socket, thereby enclosing the first capture sleeve 21 described below. Adjusting the other end adjusts the circumference of the first capture sleeve 21. In this case, the end of the first capture sleeve 21 with the socket can be connected to the first mounting tube 10 (this embodiment is not shown in the figures).

[0051] For example Figure 1 The first capture member 20 shown in the figure is inserted into two first conduits 30 described below respectively. When the first capture member 20 is used to enclose the first capture sleeve 21 between the two first conduits 30, the first capture member 20 can be directly placed in the first conduit 30 and can move in the first conduit 30 along the length direction of the first conduit 30. At this time, the first capture member 20 has no direct connection with the first mounting tube 10, but is only located in the first mounting tube 10.

[0052] In this embodiment, a first capture sleeve 21 is provided at the distal end of each first capture member 20. The first capture sleeve 21 extends from the distal end of the first mounting tube 10 and is used to receive the first capture sleeve 21 of the inserted object 200. Multiple first capture sleeves 21 are arranged circumferentially around the first mounting tube 10, and each first capture sleeve 21 is configured to be able to adjust its own circumference so that the first capture sleeve 21 can move between expansion and contraction.

[0053] By designing the capture device of the surgical implant 200 to include a first mounting tube 10 and multiple first capture members 20, multiple first capture sleeves 21 of the multiple first capture members 20 are arranged circumferentially around the first mounting tube 10, and each first capture sleeve 21 can move between expansion and contraction. When docking the hook body 210 and other connecting members of the implant 200, the contracted multiple first capture sleeves 21 are transported to the position of the implant 200, and then the multiple first capture sleeves 21 are expanded to form a capture structure surrounding the hook body 210 and other connecting members, and then the first capture sleeve 21 is contracted. At least one of the multiple first capture sleeves 21 can be directly connected to the hook body 210 and other connecting members. Compared with the single ring method in the related art, the capture difficulty can be reduced, the capture efficiency can be improved, the possibility of multiple capture operations can be reduced, the damage to the inner wall of the lumen 100 can be reduced, and the safety of removing the implant 200 can be improved.

[0054] In some examples, optionally, the surgical insert 200 capture device includes a plurality of first catheters 30, which are at least partially installed in the first mounting tube 10 and arranged along the circumference of the first mounting tube 10. In some embodiments, the plurality of first catheters 30 can be evenly spaced along the circumference of the first mounting tube 10.

[0055] The first conduit 30 also has a proximal end and a distal end, and the length direction of the first conduit 30 can be consistent or approximately consistent with the length direction of the first mounting tube 10. In some embodiments, the material of the first conduit 30 can be set to be the same as that of the first mounting tube 10 and the second mounting tube 60 described below.

[0056] Combined with attachment Figure 15 As shown, the first capture member 20 has two first free ends 22, one of which is inserted into the distal end opening of one of two adjacent first conduits 30, and the other first free end 22 is inserted into the distal end opening of the other of the two adjacent first conduits 30, so that the portion of the first capture member 20 between the two adjacent first conduits 30 forms a first capture sleeve 21. Two first capture members 20 adjacent to each other along the circumference of the first mounting member can be inserted into each first conduit 30, thereby reducing the number of first conduits 30 used and allowing multiple first conduits 30 and multiple first capture members 20 to form a single unit.

[0057] The two first free ends 22 can each extend from the proximal end of the first conduit 30 through which they are respectively passed, so that the operator can adjust the circumference of the first capture sleeve 21 by pulling or pushing the first free ends 22, or can connect the first free ends 22 to the first operating member 72 on the operating handle 71 to adjust the size of the first capture sleeve 21. Of course, it is also possible that one of the two first free ends 22 extends from the proximal end of the first conduit 30 through which it is passed, or that neither of the first free ends 22 extends from the proximal end of the first conduit 30 through which it is passed, and other connecting members are used to connect the first free ends 22 to perform operations on the first free ends 22.

[0058] The shape of the first capture sleeve 21 when it is contracted can be Figure 7 As shown in FIG. a, the first capture sleeve 21 is only a straight line segment between two adjacent first conduits 30. The outer contour of the first capture sleeve 21 when deployed is as shown in FIG. Figure 1-3 As shown, it is similar to the shape of a valve ring. Of course, it can also be other shapes, as long as it can be mounted on the hook body 210 of the implant 200. This embodiment will not list too many of them.

[0059] In some examples, optionally, the surgical insertion object 200 capture device also includes a plurality of second capture members 40, the second capture members 40 having the same or similar structure as the first capture members 20, the plurality of second capture members 40 being connected to the first mounting tube 10, and the plurality of first capture members 20 being arranged around the periphery of the plurality of second capture members 40, that is, the plurality of first capture members 20 surround the plurality of second capture members 40, or the plurality of second capture members 40 are located inside the ring surrounded by the plurality of first capture members 20.

[0060] Each second capture member 40 has a second capture sleeve 41 extending from the distal end of the first mounting tube 10 and used to sleeve the inserted object 200. Multiple second capture sleeves 41 are arranged circumferentially around the first mounting tube 10, and each second capture sleeve 41 is configured to be able to adjust its own circumference to move between expansion and contraction.

[0061] The connection method between the second catching member 40 and the first mounting tube 10 may be the same as that of the first catching member 20 described above, which will not be described in detail in this embodiment.

[0062] After the second capture member 40 is configured, the second capture member 40 can be deployed to form Figure 1-3 The state in the Figure 7 As shown in FIG. c and FIG. d , the second capturing member 40 and the first capturing member 20 can be used to form a multi-layer capturing sleeve structure that surrounds from the inside to the outside, thereby better capturing the hook body 210 of the inserted object 200 .

[0063] In some examples, optionally, the surgical implant 200 capture device includes a plurality of second catheters 50, which are at least partially connected to the first mounting tube 10 and arranged along the circumference of the first mounting tube 10, and the plurality of first catheters 30 are arranged around the periphery of the plurality of second catheters 50.

[0064] For ease of understanding, this embodiment will Figure 3 The second capture sleeve 41 and the second conduit 50 are shown in dashed lines.

[0065] The structure and material of the second conduit 50 may be the same as or similar to those of the aforementioned first conduit 30 , and the matching relationship between the second conduit 50 and the second capture member 40 may be the same as the matching relationship between the aforementioned first conduit 30 and the first capture member 20 .

[0066] Specifically, the second capture member 40 may have two second free ends (not shown in the figure), the second free ends being located at the proximal end of the second catheter 50 and Figure 15 The structure of the first free end 22 is the same or similar, so this embodiment is not illustrated.

[0067] One of the two second free ends is inserted into one of the two adjacent second conduits 50 through the distal end opening of the second conduit 50, and the other of the two second free ends is inserted into the other of the two adjacent second conduits 50 through the distal end opening of the other second conduit 50. The portion of the second capture member 40 between the two adjacent second conduits 50 forms a second capture sleeve 41. Two second capture members 40 adjacent to each other along the circumference of the first mounting tube 10 can be inserted into each second conduit 50, thereby reducing the number of second conduits 50 used and allowing multiple second conduits 50 and multiple second capture members 40 to form a single unit.

[0068] In some embodiments, the second free end of each second capture member 40 can be extended beyond the proximal end of the corresponding second catheter 50 to facilitate manipulation of the second free end.

[0069] In order to enable the first capturing sleeve 21 and the second capturing sleeve 41 to form a multi-layered capturing structure in the radial direction of the first mounting tube 10 , the first conduit 30 is designed in this embodiment to surround the second conduit 50 .

[0070] This embodiment uses the above-mentioned two first tubes 30 and one first capture member 20 to enclose the first capture sleeve 21, and uses two second tubes 50 and one second capture member 40 to enclose the second capture sleeve 41. This not only facilitates the connection and installation of the above-mentioned tubes and capture sleeves, but also makes it more convenient to adjust the circumference of the first capture sleeve 21 and the second capture sleeve 41, because the two first free ends 22 of the first capture member 20 can be operated at the same time to adjust the circumference of the first capture sleeve 21, and the two second free ends of the second capture member 40 can be operated at the same time to adjust the circumference of the second capture sleeve 41. The structure is ingenious.

[0071] Combined with attachment Figure 2 and 3 As shown, in some examples, optionally, a plurality of first conduits 30 and a plurality of second conduits 50 are alternately arranged along the circumference of the first mounting tube 10 .

[0072] The above-mentioned multiple first conduits 30 and multiple second conduits 50 are alternately arranged, which means that along the circumference of the first installation tube 10, adjacent first conduits 30 and second conduits 50 are staggered and not arranged opposite to each other along the radial direction of the first installation tube 10.

[0073] This structure allows for after the first capture sleeve 21 and the second capture sleeve 41 to be deployed, along the radial direction of the first mounting tube 10, a portion of each first capture sleeve 21 overlaps with or is opposite to a portion of one of its two circumferentially adjacent second capture sleeves 41, and another portion of each first capture sleeve 21 overlaps with or is opposite to a portion of the other of its two circumferentially adjacent second capture sleeves 41.

[0074] Thereby, the adjacent first capture sleeve 21 and the second capture sleeve 41 form a capture structure of multiple dimensions along the radial direction of the first mounting tube 10, which can more comprehensively cover the hook body 210 and other connecting parts of the insert 200, further reducing the difficulty of capturing the insert 200 and improving the capture efficiency of the insert 200.

[0075] In some embodiments, the proximal end of the second catheter 50 can also be extended beyond the proximal end of the first catheter 30, that is, the length of the second catheter 50 extending from the first mounting tube 10 is greater than the length of the first catheter 30 extending from the first mounting tube 10. This structure enables the distance between the distal end of the second capture sleeve 41 and the distal end of the first mounting tube 10 to be greater than the distance between the distal end of the first capture sleeve 21 and the distal end of the first mounting tube 10 along the length direction of the first mounting tube 10, thereby enabling multiple first capture sleeves 21 and multiple second capture sleeves 41 to form a capture structure similar to a multi-level capture structure from the distal end to the proximal end, further improving the capture efficiency.

[0076] The following is combined with Figure 7The specific working process of the surgical implant 200 capture device provided in some embodiments of the present application is introduced.

[0077] First, combine the Figure 7 As shown in Figure a, the operator inserts the distal end of the first mounting tube 10 into the tubular cavity 100. At this time, the first capture sleeve 21 and the second capture sleeve 41 are both in a contracted state. It can be seen that the distance between the distal end of the second catheter 50 and the distal end of the first mounting tube 10 is greater than the distance between the distal end of the first catheter 30 and the distal end of the first mounting tube 10.

[0078] Then as Figure 7 As shown in FIG. b, the first capture sleeve 21 is opened by operating the first free end 22. For the convenience of illustration, the first capture sleeve 21 in the accompanying drawings is shown in dotted lines in this embodiment.

[0079] Then as Figure 7 As shown in FIG. c, the second capture sleeve 41 is opened by operating the second free end, and the first capture sleeve 21 and the second capture sleeve 41 are moved to the position as shown in FIG. Figure 7 The position in Figure d.

[0080] Then as Figure 7 As shown in FIG. e, the second capture sleeve 41 is contracted, and then Figure 7 As shown in FIG. f, the first capture sleeve 21 is contracted so that the first capture sleeve 21 and the second capture sleeve 41 are sleeved on the hook body 210 of the insert 200, thereby completing the capture of the insert 200, and finally pulling out the insert 200.

[0081] Combined with attachment Figure 8 and attached Figure 9 As shown, in some examples, optionally, the surgical insert 200 capture device also includes a second mounting tube 60, which is installed on the first mounting tube 10 in a manner that moves along the length direction of the first mounting tube 10, and a plurality of first catheters 30 are arranged around the second mounting tube 60, and a plurality of second catheters 50 are installed in the second mounting tube 60 at intervals along the circumference of the second mounting tube 60.

[0082] By configuring the second installation tube 60 , not only is the installation of the second conduit 50 facilitated, but the second conduit 50 located in the second installation tube 60 can also be directly surrounded by the plurality of first conduits 30 .

[0083] Furthermore, in this embodiment, the second mounting tube 60 is configured to be able to drive the second guide tube 50 to move, so that the first capturing sleeve 21 and the second capturing sleeve 41 form a distance along the length direction of the first mounting member.

[0084] This structure enables the multiple first capture sleeves 21 and the multiple second capture sleeves 41 to be formed after being deployed. Figure 8In this form, the portion of the entire capture device inside the human lumen 100 can remain coaxial (centered) with the axis of the human lumen 100, and ensure that the first capture sleeve 21 and the second capture sleeve 41 can maintain circumferential contact with the wall of the lumen 100, thereby avoiding the failure to capture the hook body 210 due to the tilted placement of the annular capture device inside the human lumen 100, further reducing the difficulty of capture and improving the capture efficiency.

[0085] Combined with attachment Figure 10 As shown in Figures a, b, c, d, e and f, the figure shows the working process of another surgical implant 200 capture device with a second mounting tube 60, and the specific process is the same as the aforementioned Figure 7 The same as Figures af in FIG, which will not be described in detail in this embodiment.

[0086] Combined with attachment Figure 4-6 As shown, in some examples, optionally, the surgical insertion object 200 capture device also includes an operating component 70, which is connected to the proximal end of the first mounting tube 10. The operating component 70 is a structure for medical personnel to perform the above-mentioned operations on the first free end 22 and the second free end.

[0087] The operating component 70 of this embodiment includes an operating handle 71, a first operating member 72 and a second operating member 73 connected to the operating handle 71. The first operating member 72 and the second operating member 73 can be slidably connected to the operating watch respectively. The first operating member 72 is connected to the two first free ends 22 (proximal ends) of the first capturing member 20 and is used to adjust the circumference of the first capturing sleeve 21. The second operating member 73 is connected to the two second free ends (proximal ends) of the second capturing member 40 and is used to adjust the circumference of the second capturing sleeve 41.

[0088] When the surgical insert 200 capture device of this embodiment includes a second mounting tube 60, it may also include a third operating member (not shown in the figure) slidably connected to the operating handle 71. The third operating member can be connected to the second mounting tube 60 to drive the second mounting tube 60 to slide in the first mounting tube 10, thereby adjusting the distance between the first capture sleeve 21 and the second capture sleeve 41.

[0089] In some examples, optionally, the elasticity of the first capture member 20 is greater than the elasticity of the second capture member 40, so that the stronger compressive force generated by the first capture member 20 has a certain degree of squeezing on the contracted first capture member 20, making the contraction state of the entire annular capturer better, and further improving the efficiency of the capture hook body 210.

[0090] The elasticity of the first capture member 20 is greater than the elasticity of the second capture member 40, which can be achieved by designing the diameter (cross-sectional diameter) of the first capture member 20 to be the diameter (cross-sectional diameter) of the second capture member 40. The first capture member 20 and the second capture member 40 can be metal parts or other materials with a certain elasticity (such as plastic).

[0091] Combined with the attachment again Figure 1 As shown, in some examples, optionally, the first conduit 30 is provided with a first developing ring 80 , and / or the second conduit 50 is provided with a second developing ring 90 .

[0092] A first developing ring 80 is provided on the first catheter 30, and a second developing ring 90 is provided on the second catheter 50. The first developing ring 80 and the second developing ring 90 are made of a high-density composite medical material (for example, they may include metal or plastic). The first developing ring 80 and the second developing ring 90 are clearly visible on an in vitro display device (not shown in the figure), which facilitates the doctor's operation to accurately position the first catheter 30 and the second catheter 50 of this embodiment. The effect is particularly obvious when used in thinner blood vessels, which significantly improves the efficiency and safety of the operation.

[0093] The above description is merely a preferred embodiment of the present invention. Those skilled in the art should understand that the scope of the present invention is not limited to technical solutions formed by specific combinations of the above-mentioned technical features. It also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents, without departing from the above-mentioned disclosure. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. A surgical implant capture device, characterized in that: include: a first mounting tube and a plurality of first capture members; The plurality of first capture members are connected to the first mounting tube, each of the first capture members having a first capture sleeve extending from a distal end of the first mounting tube and configured to sleeve the inserted object, the plurality of first capture sleeves being arranged circumferentially around the first mounting tube, and each of the first capture sleeves being configured to be able to adjust its circumference to move between expansion and contraction; The surgical insertion object capture device includes a plurality of first conduits, the plurality of first conduits being at least partially mounted in the first mounting tube and arranged along the circumference of the first mounting tube; the first capture member having two first free ends, one of the first free ends being inserted into one of two adjacent first conduits, and the other first free end being inserted into the other of the two adjacent first conduits; the portion of the first capture member between the two adjacent first conduits enclosing the first capture sleeve; the first capture member is elastic; The surgical insertion capture device further includes a plurality of second capture members, the plurality of second capture members being connected to the inside of the first mounting tube, the plurality of first capture members being arranged around the periphery of the plurality of second capture members, each second capture member having a second capture sleeve extending from a distal end of the first mounting tube and being used to sleeve the insertion object, the plurality of second capture sleeves being arranged around the circumference of the first mounting tube, and each second capture sleeve being configured to be able to adjust its own circumference so as to move between expansion and contraction; The surgical insertion object capture device includes a plurality of second tubes, the plurality of second tubes being at least partially connected to the first mounting tube and arranged along the circumference of the first mounting tube, the plurality of first tubes being arranged around the periphery of the plurality of second tubes, and the distance between the distal ends of the second tubes and the distal end of the first mounting tube being greater than the distance between the distal ends of the first tubes and the distal ends of the first mounting tube, the second capture member having two second free ends, one of the two second free ends being inserted into one of two adjacent second tubes, the other of the two second free ends being inserted into the other of two adjacent second tubes, and the portion of the second capture member between the two adjacent second tubes enclosing the second capture sleeve; Along the circumference of the first mounting tube, multiple first ducts and multiple second ducts are alternately arranged. After the first capture sleeve and the second capture sleeve are unfolded, along the radial direction of the first mounting tube, a part of each first capture sleeve overlaps with or is opposite to one part of the two second capture sleeves adjacent to it along the circumferential direction, and another part of each first capture sleeve overlaps with or is opposite to another part of the two second capture sleeves adjacent to it along the circumferential direction.

2. The surgical implant capture device according to claim 1, characterized in that: The first conduit is provided with a first developing ring, and / or the second conduit is provided with a second developing ring.

3. The surgical implant capture device according to claim 1, characterized in that: At least one of the two first free ends extends out of the proximal end of the first catheter, and / or at least one of the two second free ends extends out of the proximal end of the second catheter.

4. A surgical implant capture device according to any one of claims 1 to 3, characterized in that: The surgical insertion object capture device also includes a second mounting tube, which is installed on the first mounting tube in a manner that allows it to move along the length direction of the first mounting tube. The multiple first catheters are arranged around the second mounting tube, and the multiple second catheters are installed in the second mounting tube at circumferential intervals along the second mounting tube. The second mounting tube is configured to be able to drive the second catheter to move along the length direction of the first mounting tube, so that the first capture sleeve and the second capture sleeve form a spacing along the length direction of the first mounting member.

5. A surgical insertion capture device according to any one of claims 1 to 3, characterized in that: The elasticity of the first catching member is greater than the elasticity of the second catching member.

6. A surgical implant capture device according to any one of claims 1 to 3, characterized in that: The surgical insertion object capture device also includes an operating component, which is connected to the proximal end of the first mounting tube. The operating component includes an operating handle, a first operating member and a second operating member connected to the operating handle. The first operating member is connected to the first capture member and is used to adjust the circumference of the first capture sleeve. The second operating member is connected to the second capture member and is used to adjust the circumference of the second capture sleeve.

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